Speech spectrum envelope modeling

Authors:
Robert Vích;Martin Vondra
Affiliations:
Institute of Photonics and Electronics, Academy of Sciences of the Czech Republic, Prague 8, Czech Republic;Institute of Photonics and Electronics, Academy of Sciences of the Czech Republic, Prague 8, Czech Republic
Venue:
COST 2102'07 Proceedings of the 2007 COST action 2102 international conference on Verbal and nonverbal communication behaviours
Year:
2007

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Abstract

A new method for speech analysis is described. It is based on extremes finding in the magnitude spectrum of a speech frame followed by interpolation. The interpolated spectrum envelope can be used for speech synthesis and also for the estimation of the excitation and background noise. In the contribution the proposed method is illustrated using a noisy speech frame and compared with LPC spectrum and spectrum obtained by classical and hidden cepstral smoothing.